They asked a federal judge Friday to dismiss the indictment against 40-year-old Gregory Brown Jr.
Brown was originally convicted in Allegheny County in the Valentine's Day fire in 1995 but won a new trial after arguing authorities didn't disclose that witnesses were offered money in exchange for their testimonies.
The Pittsburgh Post-Gazette reports Brown's attorneys claim that to try him in federal court violates his right against double jeopardy.
Prosecutors contend that federal court is a separate jurisdiction. The judge also questioned whether jeopardy is even attached since Brown's first conviction was vacated.
Information from: Pittsburgh Post-Gazette, http://www.post-gazette.com
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